"I hardly drink anything and my view has been to delay the moment of alcohol consumption for my children as long as possible," she said.

"This is at odds with many friends and family who I know have purchased alcohol for their underage kids for things like the after-ball and leavers in the mistaken belief that they can then be reassured that that is all they are going to drink."

Six packs

Dillon says parents who believe they are protecting their kids by buying alcohol for them are kidding themselves and he is particularly concerned about the gifting of a six pack to young girls.

He says some of these pre-mixed bottles can have an alcohol content as high as 14%.

DARTA's research found these drinks are the preferred beverage of about half of Australia's drinking teenage girls.

Sophie says she was shellshocked after Dillon's address to her class but some of her friends didn't react the same way.

"Most people were talking about it for a few days, one of my friends will be 18 at schoolies and is now reconsidering going," she said.

"But, then there were a few others who were just making jokes."

Her mother Jo says hearing Dillon talk has given her even more resolve.

She says she will continue to advise and counsel her daughters about the dangers of alcohol but she also plans to never again buy an 18th birthday card with a champagne glass or similar on the cover!

Free trade is the oldest argument in federal politics and the issue that literally defined the federation era but opposition exists to the TPP, courtesy of the Investor-State Dispute Resolutions clause.